A curse is placed on grinchy Chuy, who wakes up to find he's lived a full year, but is doomed to remember only Christmas Day. Every year. From now on.

One enchanted night, during a meteor shower, young Sebastián made a heartfelt wish: for his loving nanny, Lupe, to become his mother, for her warmth and care were what he longed for, unlike his busy mother, Paola. The stars listened, and in their mysterious way, granted his wish, exchanging the roles of the two women, leading to a whimsical adventure full of unexpected laughs and heartwarming chaos.